Home / 1,622.02-2,238.27-992.65

Finding the Fourth Proportional to 1,622.02, 2,238.27 and 992.65

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Solution

The fourth proportional to 1,622.02, 2,238.27 and 992.65 is: 1,369.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,622.02 : 2,238.27 = 992.65 : x
  2. Step 2: Convert to fraction form
    1,622.02/2,238.27 = 992.65/x
  3. Step 3: Cross multiply
    1,622.02x = 2,238.27 × 992.65
  4. Step 4: Simplify right side
    1,622.02x = 2,221,818.72
  5. Step 5: Solve for x
    x = 2,221,818.72/1,622.02
  6. Step 6: Final answer
    x = 1,369.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.